I have worked around this problem and don't have examples to present, but it could be a problem down the road and am concerned.
I have a dataset with about 70 unique values and need to filter - in a dashboard list using a data expression - for 6 values.
In the dropdown, 2 of the values I need are not available and I cannot type them in - 'Value Not Found'
If I do not filter, I can see the 2 values I need. THEY ARE IN THERE (Pardon the all caps).
The workaround is that I did a definition query in ArcPro on the 6 values I need and put no filter in the dashboard. That works (for now).
Is this some known limit with Arcade data expressions? The filter is NOT seeing some values that are in the dataset.
Thank you,
Randy McGregor